Black Screen After Boot up

[mike_72165]

My T420s (2 months old) recently has been giving me a black screen after boot up (no "Thinkpad" image is displayed during boot up).  System totally unresponsive -- I have to push on/off button multiple times.  Subsequent boot up usually OK.  Sometimes once I'm up and running, upon entering sleep mode, the machine will not wake up.

I have adjusted power management setting and and up-to-date on all drives.  HELP!!!

[lead_org Microsoft MVP Contributor]

if this is constantly occurring this would mean something is wrong with the Thinkpad's hardware, since this laptop is fairly new, you should consider getting it fixed under warranty.